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  1. #1
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    Help identifying what Cannondale hardtail this is?

    Hello guys/girls,

    I am hoping one of the many, knowledgeable Cannondale owners on this forum can help me identify what Cannondale hardtail frame I just bought. While browsing eBay, I came across a listing for a Cannondale Flash 1 frame; the price was great and there wasn't much time left on the auction, so I placed a bid. Surprisingly, my relatively low bid won the auction and I became a Cannondale owner thrice over (my other two being road bikes).

    When I received the bike I realized it was not a Flash frame, noting its lack of hydro-formed tubing. For the price I paid, I'm happy with whatever frame it is, but I certainly would like to identify it for my own satisfaction.

    Here is what I observed about the frame:

    - 18" C-2-T seat tube, 22" C-2-C top-tube, so it is probably a letter size Medium

    - BB30 bottom bracket shell

    - 1.5" headtube with Cannondale SI headset

    - 27.2mm seatpost size

    - 3 sets of braze-ons (water bottle mounts)

    - no rack mount braze-ons on the seat stay

    - disc brake only, no provisions for cantilever brakes

    - It weighs right at 1600 grams with the headset installed (3.54 pounds)

    - the numbers stamped into the BB shell are: 5FMN6L, MD, S039QC00958

    - the bar-code tag is: Q008754

    What I am able to decipher from the bar code is that it is production year Q, which I believe is 2005. I searched the gallery on Vintage Cannondale for 2005 model bikes, and the shape of my frame tubing looks similar to that of the F series Optimo bikes listed on there. The frame is a metallic jet black color with just a hint of brown/green pearl color when in direct sunlight.

    Any suggestions as to what it might be? Attached are some pictures for your viewing.

    Non-drive side


    Drive side


    Underneath the top-tube cable routing


    Drive-side dropout


    Non drive-side dropout


    Bottom bracket shell


    Numbers
    Too many bicycles to list...

  2. #2
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    optimo F4000SL

  3. #3
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    oh and it'll make you a very good bike btw!

  4. #4
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    Thank you for your input.

    Truthfully, I'm happier to hear it is an Optimo than a Flash; everything I've read about the Optimo frame over the past few years has been great! (not that the Flash is bad in any way)
    Too many bicycles to list...

  5. #5
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    The Flash just came out .
    There is no way you could think that old thing is less then 2 years old .

  6. #6
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    Quote Originally Posted by ccaddy View Post
    The Flash just came out .
    There is no way you could think that old thing is less then 2 years old .
    After getting a chance to see it, no I didn't think it was a Flash. I bought it sight unseen, so this morning was my first time laying eyes on it.
    Too many bicycles to list...

  7. #7
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    If you are looking to buy an awesome front end for that frame let me know.

  8. #8
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    Hi there im based in the UK just wondered what year Cdale added BB30 to optimo frames? my 2006 Optimo didn't. mine also had two cables routed under the top tube not three? any one any idea what year this bike?

  9. #9
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    only the 2005/2006 f4000sl had the optimo si (BB30) frame. it has much better cable routing for the crap british winter weather!

  10. #10
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    sorry off-topic..can i ask what a CD SI Headset is? is it just for a HeadShock or Lefty?
    i asking cause im stuck on finding a quality headset for an F5 hardtail...
    top is "zero-stack" but the bottom is a large "external cup" for the oversized 1.5" standard?
    i havent removed the lower cup, i can only guess the ID of the lower frame headtube is around 50mm
    im gonna start a thread question but thanks..

    frank

  11. #11
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    Quote Originally Posted by BritOnTour View Post
    If you are looking to buy an awesome front end for that frame let me know.
    What did you have in mind? I am right hand dominant, but that doesn't mean my bike can't be a lefty.

    Quote Originally Posted by LLOYDSTEVENS View Post
    Hi there im based in the UK just wondered what year Cdale added BB30 to optimo frames? my 2006 Optimo didn't. mine also had two cables routed under the top tube not three? any one any idea what year this bike?
    It appears to be a 2005 model year.

    Quote Originally Posted by parkincake View Post
    only the 2005/2006 f4000sl had the optimo si (BB30) frame. it has much better cable routing for the crap british winter weather!
    All around, it appears to be a well thought out frame.
    Too many bicycles to list...

  12. #12
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    Quote Originally Posted by Tornadom View Post
    What did you have in mind? I am right hand dominant, but that doesn't mean my bike can't be a lefty.
    Yes, a lefty is indeed a fine fork, which is why I put one one my bike! the fork i removed is almost as good. Its a Rockshox Revelation U-Turn fork, and I'm selling it complete with the headset, stem & wheel that i swapped out.

    Let me know if you are interested, I am willing to negotiate on the price.

  13. #13
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    Quote Originally Posted by BritOnTour View Post
    Yes, a lefty is indeed a fine fork, which is why I put one one my bike! the fork i removed is almost as good. Its a Rockshox Revelation U-Turn fork, and I'm selling it complete with the headset, stem & wheel that i swapped out.

    Let me know if you are interested, I am willing to negotiate on the price.
    I appreciate it. The Revelation is a bit more fork (travel wise) than I want to run though; not to mention I am a bit of a weight weenie. It is a mighty fine fork though, and if I were building up an Uber V or modern Cannondale dually I would be very interested.
    Too many bicycles to list...

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